Add a New Paragraph in a PowerPoint 2007 Slide
To add a new paragraph to a slide with the PowerPoint outline that appears on the PowerPoint Outline tab, move the insertion point to the end of the paragraph that you want the new paragraph to follow and then press Enter. PowerPoint creates a new paragraph at the same outline level as the preceding paragraph
If you move the insertion point to the end of the title line and press Enter, PowerPoint creates a new slide. Press the Tab key to change the new slide to a paragraph on the previous slide.
If you position the insertion point at the beginning of a paragraph and press Enter, the new paragraph is inserted above the cursor position. If you position the cursor in the middle of a paragraph and press Enter, the paragraph is split in two.
After you add a new paragraph, you might want to change its level in the outline. To do that, you must promote or demote the new paragraph. To create a subpoint for a main point, for example, position the cursor at the end of the main point and press Enter. Then, demote the new paragraph by pressing the Tab key.